Thread: 98 454 upgrades

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I picked up a 454 out of a 98 Chevy Pick up for Free. I was wondering if it would be any good for a 84 Monte Play toy I take to a 1/8 mile Strip everyonce in a while. Do these need a Vortec intake like small blocks or will a big block intake bolt on these heads? I have found some 502 cams also would this be a decent motor to play with? This will be the first big block I have ever messed with. Thanks

Anyone ever messed with one?

Originally Posted by Bozz

Anyone ever messed with one?

yes i have built many heads are fair they can be made to run just has alot to do with how much money you want to spend and how fast you want to go

Thesse are really good foundations for horsepower as they have 4 Bolt blocks and factory Roller Cams-I am building one for my Car, but the jury does seem to be out in regards to the Heads-Dave, I'm sure is right, but I have heard they are limited in flow-I am using Edelbrock Heads, but there are many choices out there. The 502 Cam is a little limited, but certainly satisfactory for a street machine-Comp makes some good grinds for this engine-

Build it-it is in the same Gen VI engine Family as the current 502 and has great potential-

Are the Stock Crank and Rods any Good? I am going to have the crank turned and get some new pistons. Do you have any Cam recommendations? Car isn't driven on the street. How much can a Big Block be bored? Can you reuse roller lifters on a diff cam or do they need replaced like flat tappets do? Thanks for all your help.

Originally Posted by Bozz

Are the Stock Crank and Rods any Good? I am going to have the crank turned and get some new pistons. Do you have any Cam recommendations? Car isn't driven on the street. How much can a Big Block be bored? Can you reuse roller lifters on a diff cam or do they need replaced like flat tappets do? Thanks for all your help.

The Stock Crank is Cast, good for up to about 600 h.p.-Rods are o.k.-I understand it's good to at least .060-Yes, generally you can re-use the Lifters, but they are limited to about .550 in Lift, and, if they don't have flat spots or bad Rollers, should be fine-they are expensive to replace, so, if you are on a budget, just watch your Cam choice.

As for a Cam, you will need to give us a better understanding of what you want to do with the Car (your expectations), the weight of the Car, Transmission, Converter (if Auto), Rear Gear ratio, Tire Diameter and so on-the more info the better.

P.S.-if your Crank turns out to be bad, or you want to go over 600 h.p., let me know-I have a forged Crank (502-it will fit) that I would let you have pretty reasonably-good luck!

It's just a toy. It's a turbo 350 haven't bought a stall yet was gonna wait on it. I have 4.86's in it now but will probably be changing them. Had a Small Block in it before. It's a 84 Monte SS been gutted except for the drivers seat. I am running 29's on the rear now. Anyone have any suggestions on a 1/8 mile gear for a Big Block? . Thanks

I have a 366 out of a truck that has 40,000 on it, it burnt a hole in a piston can i use the crank and rods out of it in my 454 and make a 427? Thanks

Originally Posted by Bozz

I have a 366 out of a truck that has 40,000 on it, it burnt a hole in a piston can i use the crank and rods out of it in my 454 and make a 427? Thanks

why ? yes it can be done but i would use the truck rods out of the 366 less the 454 has the thumb rods pistons are a bit more for a 427 the 454 to 060 over get you a 468 would work very good .

I haven't got the 454 tore apart yet but since it has a knock I am figuring the crank is bad thats why i was asking about the 366 crank it was out of a city dump truck and only had in town miles mostly so i figure it should be good.

well i have built some cast steel cranks 4 1/4 cranks with the speed pro hiper pistons i would go that way496 .but you can use the 366 crank and use 427 pistons if you need a one pc main seal 454 crank i have one fresh truned ready to go that would sell for a good price is the 366 a two pc seal you need to run a seal adapter and a internal damper the truck will not work so hot with car or light truck power water etc brackets

Yeah the 366 is a 1 piece also is why i was gona use it. I have a brand new steel 396 crank still in the gm box i was gonna use but wasn't sure if they made the 2 piece to one piece adapter like they have for small blocks.

Originally Posted by Bozz

Yeah the 366 is a 1 piece also is why i was gona use it. I have a brand new steel 396 crank still in the gm box i was gonna use but wasn't sure if they made the 2 piece to one piece adapter like they have for small blocks.

yes they do i have used them they work fine

I have decided to just stick with leaving it a 454 the crank is turnable. I am wanting to up the compression some but was told they don't make a dome piston for the heads on it. Is there any Truth to this? The heads are 10141279 100cc. Thanks

if you have a 100cc you can use a flat top piston .if you have a dish that should jump it up or a close chamber pistons you may have to trim the chamber out a very small amount to clear how much CR do you want??? at o deck with a flat top you should be at 9.3 . with a close chamber dome piston base off 101cc head you will be at 13.5